Question

What is a benefit of hydroelectric power? *
It pollutes the air
It requires fossil fuels to operate
It has low operating costs once built
It is a non-renewable energy source

Answer 1

The benefit of hydroelectric power is **"It has low operating costs once built."** Hydroelectric power plants typically have high initial construction costs, but once they are operational, their maintenance and operational costs are relatively low. Additionally, hydroelectric power is a renewable energy source, as it relies on the natural water cycle.